Year	current US$
1980	180000.00715255702
1981	2480000.01907349
1982	4070000.1716613797
1983	6130000.11444092
1984	5159999.84741211
1985	6659999.84741211
1986	16729999.5422363
1987	16959999.084472697
1988	14489999.7711182
1989	16700000.7629395
1990	14640000.3433228
1991	16079999.923706101
1992	21850000.3814697
1993	17649999.6185303
1994	22489999.7711182
1995	20030000.6866455
1996	18340000.1525879
1997	18750000
1998	17500000
1999	14789999.961853001
2000	18100000.3814697
2001	12529999.7329712
2002	11359999.6566772
2003	12020000.4577637
2004	12340000.1525879
2005	14390000.3433228
2006	11140000.3433228
2007	13329999.923706101
2008	11960000.038146999
2009	10539999.961853001
2010	11000000
2011	10189999.5803833
2012	10163968.0862427
2013	8923007.01141357
2014	8713480.949401861
2015	7966463.56582642
2016	7065320.96862793
2017	7962540.14968872
2018	6989086.151123051
2019	7903999.80545044
2020	7692999.83978271
2021	6686999.797821039
2022	5165999.88937378